EP3494777A1 - Compteur à lait - Google Patents

Compteur à lait Download PDF

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Publication number
EP3494777A1
EP3494777A1 EP18211325.8A EP18211325A EP3494777A1 EP 3494777 A1 EP3494777 A1 EP 3494777A1 EP 18211325 A EP18211325 A EP 18211325A EP 3494777 A1 EP3494777 A1 EP 3494777A1
Authority
EP
European Patent Office
Prior art keywords
pressure
milk
valve
milk meter
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18211325.8A
Other languages
German (de)
English (en)
Other versions
EP3494777B1 (fr
Inventor
Edwin SCHÄPERCLAUS
Jeroen Martin Van Dijk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nederlandsche Apparatenfabriek NEDAP NV
Original Assignee
Nederlandsche Apparatenfabriek NEDAP NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of EP3494777A1 publication Critical patent/EP3494777A1/fr
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Publication of EP3494777B1 publication Critical patent/EP3494777B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00—Milking machines or devices
    • A01J5/007—Monitoring milking processes; Control or regulation of milking machines
    • A01J5/01—Milkmeters; Milk flow sensing devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/52—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring the height of the fluid level due to the lifting power of the fluid flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/303—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by means to prevent fault-level readings due to turbulence of the fluid, e.g. special float housings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means

Definitions

  • the invention relates to a milk meter for measuring a flow rate of a milk flow, provided with an inlet to which, in use, the milk flow is supplied, an outlet where the milk flow leaves the milk meter, in use, and a liquid flow path extending from the inlet to the outlet.
  • a milk meter is known from Dutch patent application 2017924 .
  • An object of the invention is to improve the known milk meter.
  • a valve is included which can selectively take up a first or second valve position where in the first valve position at least a first part of the liquid path is open and in the second valve position at least the first part of the liquid path is closed, while the valve is provided with an operating opening, the milk meter being configured such that:
  • the valve is provided with a housing in which a cylinder is included, a piston which is movably included in the cylinder, a first inlet opening and an outlet opening, while the piston and the cylinder can move relative to each other between a first and second position and the valve is furthermore provided with a spring element which presses the cylinder and the piston relative to each in the direction of the second position, while in the first position the valve takes up the first valve position and a first fluid connection between the first inlet opening and the outlet opening is cleared and in the second position the valve takes up the second valve position and the first fluid connection between the first inlet opening and the outlet opening is blocked, while the operating opening is in fluid communication with a space within the cylinder, and the inlet opening is in fluid communication with a space outside the cylinder within the housing, and wherein a pressure at the operating opening which is greater than a pressure which prevails in the space within the housing outside the cylinder presses the cylinder and the piston relative to each other in the direction of the first position against
  • FIG. 2 with reference numeral 1 a possible embodiment of a milk meter according to the invention is indicated.
  • the milk meter is provided with an inlet 2 into which, in use, the milk flow whose flow rate is to be measured is supplied. Further, the milk meter is provided with an outlet 4 where the milk flow whose flow rate has been measured, in use, leaves the milk meter again. Between the inlet and the outlet extends a liquid flow path (also: liquid path) 5 which is schematically indicated in the drawing with a broken line. Obviously, the broken line concerns just one possible pathway along which the milk flow can proceed; reason why the representation is schematic.
  • the milk meter is provided with a stabilization chamber 6 which is also included in the liquid flow path 5.
  • the milk meter is furthermore provided with a float 8 which is in the stabilization chamber and which is configured to float on the milk of the milk flow that, in use, is in the stabilization chamber.
  • the milk meter is configured such that a level of the milk in the stabilization chamber (the height of the liquid surface of the milk in the stabilization chamber) depends on the flow rate of the milk flow. In this example, it holds that the height of the level of the milk in the stabilization chamber increases when the flow rate increases.
  • the milk meter is further provided with a sensor device for determining the flow rate of the milk flow through the milk meter.
  • the sensor device comprises an electronic measuring unit 12.
  • the milk meter is further provided with a magnetization unit 10 for generating a magnetic field in the stabilization chamber.
  • the magnetic field that is generated is such that the magnetic field strength varies in a height direction h of the stabilization chamber.
  • the electronic measuring unit 12 is arranged for measuring the strength of the magnetic field.
  • the strength of the magnetic field is also referred to as a magnetic flux.
  • the measured strength of the magnetic field is a measure of the height at which the float is floating on the milk in the stabilization chamber. Because the height at which the float is floating within the stabilization chamber, in turn, is determined by the flow rate of the milk flow, in this way information about the flow rate is obtained. To put it differently, the flow rate is measured in this manner.
  • the electronic measuring unit is provided with a transmitter unit 14 for emitting a signal which comprises information about the measured flow rate of the milk flow.
  • the electronic measuring unit is further provided with a Hall sensor 16 for detecting the magnetic field and a processor 18 for processing measuring signals from the Hall sensor to obtain information about the flow rate of the milk flow, which is emitted with the aid of the transmitter unit 14.
  • the electronic measuring unit 12 is further provided with a supply 20 for providing a supply voltage for the processor and the transmitter unit.
  • the milk meter in this example is further provided with a buffer reservoir 24 which is included upstream of the stabilization chamber in the liquid flow path 5.
  • a buffer reservoir 24 which is included upstream of the stabilization chamber in the liquid flow path 5.
  • an outflow opening which extends from a lowest point 30 of the outflow opening upwardly in the direction h and which is in fluid communication with the outlet 4.
  • the outflow opening 28 is in fluid communication with the outlet 4 via an outflow channel 32.
  • a top of the buffer reservoir is provided with an inlet opening 34 which is in fluid communication with the inlet 2.
  • the buffer reservoir 24 and the stabilization chamber 6 are connected with each other via a fluid connection 36.
  • the construction is such that the buffer reservoir 24, the fluid connection 36 and the stabilization chamber 6, in use, function as communicating vessels so that, in use, a level of the milk in the stabilization chamber (measured in the direction h) is equal to a level of the milk in the buffer reservoir (likewise measured in the direction h).
  • the buffer reservoir and the stabilization chamber can be directly or indirectly open to an environment formed in a milking system for milking animals in which the milk meter is included, for instance via small apertures at a top of the buffer reservoir and the stabilization chamber (not shown).
  • This environment of the system typically has a somewhat reduced pressure P2 (also referred to as vacuum pressure) relative to the air pressure (also referred to as atmospheric pressure PI).
  • P2 also referred to as vacuum pressure
  • atmospheric pressure PI atmospheric pressure
  • the buffer reservoir and the stabilization chamber may also be in open communication with an environment outside the milking system and hence with the space in a barn. Also, the buffer reservoir and the stabilization chamber may be in open communication with a space within the milk meter in which the buffer reservoir and the stabilization chamber are included.
  • the outflow opening 28 of the buffer reservoir has a width b which increases in upward direction (in the direction h).
  • the lowest point 30 of the outflow opening is below a half height H of the stabilization chamber. This is merely an example. This point may, if desired, be higher or lower and the point 30 may even be on the bottom 38 of the buffer reservoir.
  • the stabilization chamber 6 in this example is of substantially cylinder-shaped design, with the buffer reservoir extending around the stabilization chamber. More particularly, it holds that the buffer reservoir also extends around the outflow channel 32 and that the stabilization chamber 6 is next to the outflow channel 32.
  • the outflow channel in this example is likewise of substantially cylinder-shaped design. However, this is not requisite.
  • the milk meter is furthermore provided with a milk flow spread plate 44 which is arranged in the liquid flow path 5 between the inlet and the buffer reservoir and is positioned such that the milk flow is distributed by the plate.
  • the magnetization unit is implemented as a permanent magnet which in this example is arranged above the stabilization chamber; more specifically, in this example under the spread plate 44.
  • the magnetic unit may also be arranged in other places, as under the stabilization chamber.
  • the milk meter is furthermore provided with a valve 100 which is included in the liquid flow path 5 between the outflow channel 32 and the outlet 4. In the further description of the operation of the milk meter 1 following below it is assumed that this valve 100 is open. After this further description, the particular function and properties of the valve 100 will be discussed.
  • the operation of the milk meter is as follows.
  • a liquid flow is supplied to the inlet 2, it will first come into contact with the spread plate 44.
  • the milk then flows over the edges of the spread plate into the buffer reservoir 24.
  • This buffer reservoir 24 will start to fill.
  • the stabilization chamber is likewise filled with the milk via the fluid connection 36.
  • the arrangement is such that the level of the milk in the buffer reservoir and in the stabilization chamber is the same.
  • the level of the milk in the buffer reservoir rises further, the level of the milk will reach the lowest point 30 of the outflow opening 28.
  • the buffer reservoir will start to empty via the outflow opening 28.
  • the level of the milk is thus equal to, or higher than, the lowest point 30.
  • the height of the lowest point 30 is chosen such that during measurement the float will always float properly.
  • the milk flowing out via the outflow opening 28 will flow via the outflow channel 32 to the outlet 4.
  • a larger portion of the outflow opening 28 will be below the milk level.
  • the magnitude of the flow rate of the milk that flows through the outflow opening 28 will increase.
  • an equilibrium will be established between the supply of milk to the buffer reservoir and the amount of milk that leaves the buffer reservoir. This equilibrium is then also associated with a particular height of the level of the milk in the buffer reservoir.
  • This equilibrium and hence the height of the liquid surface of the milk depends on the magnitude of the flow rate at which the milk is being supplied to the inlet 2.
  • the milk level in the buffer reservoir will fall, as a result of which the flow rate through the outflow opening will decrease (in that a smaller part of the outflow opening is below the level of the milk (the milk surface) in the buffer reservoir) until an equilibrium is established again between supply and discharge of milk in the buffer reservoir.
  • the milk level in the stabilization chamber (the height of the liquid surface of the milk in the stabilization chamber) will follow the milk level of the buffer reservoir.
  • the measured strength of the magnetic field will hence be a measure of the height at which the float is floating on the milk in the stabilization chamber. Because the height at which the float is floating within the stabilization chamber, in turn, is determined by the flow rate of the milk flow, in this manner information about the flow rate is obtained. To put it differently, the flow rate is measured in this manner.
  • the stabilization chamber and the buffer reservoir are each further provided with relatively small outlet openings 22 and 46 which have no influence on the measurement because through these openings only a relatively small portion of the milk can flow out of the stabilization chamber and the buffer reservoir, respectively.
  • These openings so-called drainage openings, are provided to ensure that after use the stabilization chamber and the buffer reservoir can slowly empty via the outlet 4.
  • These openings may also be each provided with a valve unit for opening and closing the drainage openings.
  • the valve unit of the opening 46 is indicated by way of example in Figure 2a with reference numeral 47.
  • the float is of exchangeable design, so that it can be replaced when the supply is empty or when the electronics need to be updated.
  • the stabilization chamber and/or the outflow channel may for instance each have the shape of a rectangular bar instead of a cylinder.
  • the float can then likewise be of rectangular design.
  • the stabilization chamber 6, the buffer reservoir 24, the outflow channel 32 and the fluid connection 36 are of a plastic. This provides the advantage that these parts do not influence the magnetic field.
  • the electronic measuring unit may be provided with other means than described above for contactlessly measuring the height within the stabilization chamber at which the float is floating on the milk in the stabilization chamber so that the measured height is a measure of the flow rate of the milk flow.
  • the electronic measuring unit 12 is provided with a transmitter 50 for emitting up in an upward direction a pulsating electromagnetic or acoustic measuring signal 52, and a receiver 54 for receiving reflections 56 of the measuring signal on a part 58 of the milk meter that is fixed relative to the stabilization chamber.
  • the processor 18 is configured to determine the time difference between the emission and reception of a pulse of the measuring signal, whereby the time difference is a measure of the height within the stabilization chamber at which the float is floating on the milk in the stabilization chamber and whereby hence the measured time lapse is a measure of the flow rate of the milk flow.
  • an inner wall of the stabilization chamber may be provided with mutually optically different markings which are separated from each other in upward direction.
  • an optical sensor of the measuring unit 12 which has a horizontal viewing direction, in each case, depending on the height at which the float is in the stabilization chamber, at least one defined marking can be detected. By determining which marking or markings are detected with the sensor, the height at which the float is within the stabilization chamber can be determined. The detected height is then a measure of the flow rate of the milk flow. Information about the flow rate of the milk flow can again be emitted with the transmitter unit 14.
  • the sensor device may be arranged outside the float (see Figure 6 where mutually corresponding parts in Figures 1a-2b on the one hand and Figure 6 on the other are provided with the same reference numerals).
  • the sensor device may, for example, be outside the stabilization chamber and be configured to measure the height of the level of the milk in the stabilization chamber, with the measured height of the level of the milk being a measure of the flow rate of the milk flow.
  • the sensor device may then be provided, for example, with at least one sensor, such as an optical sensor, to measure the height of the level of the milk.
  • the walls of the stabilization chamber may be transparent for this purpose.
  • the sensor device which is arranged, for example, outside the stabilization chamber may be configured to measure the height at which the float is floating on the milk in the stabilization chamber, with the measured height of the float being a measure of the flow rate of the milk flow.
  • the sensor device may then be provided, for example, with at least one sensor, such as an optical sensor, to measure the height at which the float is within the stabilization chamber.
  • the walls of the stabilization chamber may again be transparent for this purpose.
  • the milk meter according to Figure 1 is further provided with valve 100.
  • the valve 100 can selectively take up a first or second valve position where in the first valve position at least a first part 5.1 of the liquid path 5 is open and in the second valve position at least the first part 5.1 of the liquid path 5 is closed.
  • the first part 5.1 of the liquid flow path in this example is the part of the liquid flow path 5 that extends upstream of the valve through the outflow channel 32. That part of the liquid flow path 5 that extends from the inlet 2 to the outlet 4 via the drainage openings 22 and 46 hence cannot be closed off by the valve 100 and this concerns, respectively, a second part 5.2 (via drainage opening 22) and third part 5.3 (via drainage opening 46) of the liquid flow path 5.
  • the valve is provided with an operating opening 103, the milk meter being configured such that:
  • the milk meter 1 If the milk meter 1 is empty, it can be cleaned. In that case, upstream of the valve in the liquid flow path the fourth pressure will prevail which in this example is equal again to the vacuum pressure P2 mentioned above.
  • a pressure will be selected which in this example is also about equal to the vacuum pressure P2. The result is that the valve 100 will close. Now that the valve has closed, via the inlet 2 a cleaning liquid known per se can be introduced into the milk meter to clean the milk meter. This liquid can then remain in the buffer reservoir 24, stabilization chamber 6 and outflow channel 32 for a while.
  • the first pressure is selected again and upstream of the valve the second pressure prevails again, which is equal to the fifth pressure in this example.
  • the valve will open again, so that the cleaning liquid can flow out of the milk meter via the outflow channel and the outlet.
  • a fifth pressure is selected with the pressure selection means 200, which is equal to the atmospheric pressure P1.
  • a pressure is selected that is equal to the atmospheric pressure P1. This last can be realized by switching off the milking plant to which the milk meter is coupled. As a result, the reduced pressure in the milk meter (so, in inter alia the buffer reservoir, stabilization chamber and outflow channel 32) will disappear and take a value that is also equal to the atmospheric pressure.
  • the pressure at the entry is then the fifth pressure and the pressure upstream of the valve 100 is then the sixth pressure. The valve will then close.
  • the milk meter is presently in a condition that is denoted as rest: the milk meter 1 is not used and the valve 100 is closed.
  • the first pressure, fifth pressure and sixth pressure are equal to each other.
  • the first pressure is an atmospheric pressure.
  • the pressure selection means 200 may for instance comprise a valve which is opened to connect the operating opening 103 with the surroundings of the milk meter.
  • the second pressure, third pressure and fourth pressure are equal to each other.
  • the second pressure is a vacuum pressure of a value that prevails in a milking system 1.
  • the pressure selection means 200 may for instance comprise a (second) valve which is opened to connect the operating opening 103 with, for example, a top of the buffer reservoir through a connection 300 (see Figure 2a ) where in use the vacuum pressure concerned prevails.
  • the vacuum pressure is a vacuum pressure that, in use, prevails upstream of the valve 100 in the liquid path 5 and/or that the vacuum pressure is a reduced pressure relative to the atmospheric pressure.
  • FIGs 7-9 a fourth embodiment according to the invention is disclosed, where mutually corresponding parts in Figures 1-6 and Figures 7-9 are provided with the same reference numerals.
  • the float 8, magnetic unit 10 and/or measuring unit 12 may be implemented in accordance with each of the above-mentioned embodiments.
  • Figures 7-9 are especially about the particular embodiment of the valve 100 and the position where it has been incorporated within the milk meter.
  • the valve 100 is provided with a housing 105 in which a cylinder 107 is included, a piston 109 which is included in the cylinder 107, a first inlet opening 111 and an outlet opening 113, while the piston 109 and the cylinder 107 can move relative to each other between a first and second position.
  • the valve 100 is furthermore provided with a spring element 115 which presses the cylinder 107 and the piston 109 relative to each other in the direction of the second position.
  • the valve 100 takes up the first valve position where a first fluid connection between the first inlet opening 111 and the outlet opening 113 is cleared ( Figure 9 ).
  • the valve takes up the second valve position where the first fluid connection between the first inlet opening 111 and the outlet opening 113 is blocked ( Figure 8 ). Blocking does not preclude there being a drainage opening 190 present, as will be set out hereinafter.
  • the operating opening 103 is in fluid communication with a space 130 within the cylinder 107.
  • the inlet opening 111 is in fluid communication with a space 132 outside the cylinder within the housing 105.
  • a pressure at the operating opening 103 which is greater than a pressure that prevails in the space 132 present within the housing 105 and outside the cylinder 107 presses the cylinder and the piston relative to each other in the direction of the first position against the force of the spring element 115.
  • the first predetermined value is therefore a pressure difference which generates a force which presses the cylinder and the piston relative to each other to the first position and which is greater than the force of the spring element between the cylinder and the piston.
  • the first predetermined value is in the range of 0.4-1, preferably in the range of 0.5-0.8.
  • the second predetermined value is in the range of 0-0.5, preferably in the range of 0-0.3.
  • the third predetermined value is in the range of 0-0.5, preferably in the range of 0-0.3.
  • the piston 109 is fixedly connected with the housing 105 of the valve 100.
  • the valve is furthermore provided with a flexible ring 134 of which an outer edge 136 is connected, in particular detachably, with the housing 105 of the valve 100 and of which an inner edge 138 is connected with an outer side of the cylinder 107, such that a space 140 (which is in fluid communication with the space 130 within the cylinder) contiguous to a first side 142 of the ring is in fluid communication with the operating opening, and a space 144 (which is formed by the space 132 outside the cylinder) contiguous to a second side 146 of the ring opposite the first side is in fluid communication with the first fluid connection.
  • the flexible ring 134 is connected with a flexible sleeve 148 in which at least a part of the cylinder 107 is included, while an opening 150 of the sleeve 148 and the inner edge 138 of the ring are connected with each other.
  • the flexible ring 134 and the sleeve 148 are made in one piece.
  • the ring and/or the sleeve are made of silicones.
  • the function of the spring element 115 may be taken over by the flexible ring 134.
  • the spring element 115 can then be omitted, with the flexible ring 134 forming a spring element which presses the cylinder 107 and the piston 109 relative to each other in the direction of the second position.
  • the first inlet opening 111 of the valve 100 is in fluid communication with the outflow opening 28 of the buffer reservoir 24, and the outlet opening 113 of the valve 100 is in fluid communication with the outlet 4 of the milk meter, the first part 5.1 of the liquid flow path 5 extending from the outflow opening 28 of the buffer reservoir to the outlet 4 of the milk meter.
  • the first part 5.1 of the liquid path is closed ( Figure 8 ) in that a circumferential edge 180 of the sleeve 148 closes off on a part 182 of the housing.
  • a drainage opening 190 is present between the circumferential edge 180 of the sleeve 148 and the part 182 of the housing.
  • the first part 5.1 of the liquid path 5 is open.
  • the valve 100 functionally also comprises a part of the housing of the milk meter and in that regard is furthermore provided with a second inlet opening 123 which is in fluid communication with the drainage opening 22 of the stabilization chamber 6, while in the first valve position at least the second part 5.2 of the liquid path 5 is closed in that a part 184 of the sleeve 148 closes off on a part 186 of the housing 105 of the valve.
  • the second valve position Figure 8
  • at least the second part 5.2 of the liquid path 5 is open.
  • the second part 5.2 of the liquid path 5 is closed.
  • the second part of the liquid path 5, as mentioned, extends through the drainage opening of the stabilization chamber 6 to the outlet 4 of the milk meter 1, 1'.
  • the valve takes up the first valve position where a second fluid connection between the second inlet opening 123 of the valve 100 and the outlet opening 113 of the valve 100 is closed.
  • the valve 100 takes up the second valve position where the second fluid connection between the second inlet opening 123 and the outlet opening 113 is cleared.
  • the first fluid connection of the valve 100 hence lies in the first part 5.1 of the liquid flow path 5 of the milk meter.
  • the second fluid connection of the valve 100 hence lies in the second part 5.2 of the liquid flow path 5 of the milk meter.
  • a bottom 168 of the stabilization chamber is at a lower level than a bottom 170 of the buffer reservoir and/or a bottom of the outflow channel 32. Furthermore, it holds that the valve is under the buffer reservoir and at a higher level than a lowest point 172 of the outlet. In this way, the milk meter is of compact design.
  • the invention also relates to a system 500 for milking animals.
  • the system includes a milking device 502 for milking animals, known per se, and a milk meter 1 according to the invention.
  • An outlet 504 of the device 502 is connected via a fluid connection 506 to the inlet 2 of the milk meter 1 according to the invention.
  • An outlet 4 of the milk meter 1 is connected via a fluid connection 508 to a collection vessel 510 for the milk from, in this example, the animal 512.
  • the milk meter 1 measures the flow rate of the milk which is delivered by the animal 512. To put it differently, the milk meter measures a flow rate of the milk flowing through (the pipe system 514 of) the milk meter.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Measuring Volume Flow (AREA)
EP18211325.8A 2017-12-11 2018-12-10 Compteur à lait Active EP3494777B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2020053A NL2020053B1 (nl) 2017-12-11 2017-12-11 Melkmeter

Publications (2)

Publication Number Publication Date
EP3494777A1 true EP3494777A1 (fr) 2019-06-12
EP3494777B1 EP3494777B1 (fr) 2021-08-18

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Family Applications (1)

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EP18211325.8A Active EP3494777B1 (fr) 2017-12-11 2018-12-10 Compteur à lait

Country Status (3)

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US (1) US11350604B2 (fr)
EP (1) EP3494777B1 (fr)
NL (1) NL2020053B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3794940A1 (fr) * 2019-09-20 2021-03-24 Nedap N.V. Compteur à lait
DE102023124006A1 (de) * 2023-09-06 2025-03-06 Lactocorder Ag Portionierungsvorrichtung zur Erzeugung von Flüssigkeitsportionen mit vorgegebener Menge und Flüssigkeitsmengenmesssystem mit einer solchen Portionierungsvorrichtung
NL2036467B1 (en) 2023-12-08 2025-06-19 Nedap Nv A method and apparatus using an animal milking measurement unit for independently analyzing a milk flow

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023449A1 (fr) * 1979-07-18 1981-02-04 Centre National Du Machinisme Agricole, Du Genie Rural, Des Eaux Et Des Forets (Cemagref) Compteur de liquide, notamment compteur à lait, muni d'un dispositif de prélèvement d'échantillons
EP0052396A2 (fr) * 1980-11-14 1982-05-26 Kummer Electronics B.V. Dispositif de mesure du poids d'une quantité de lait donnée par une vache et dispositif pour l'enlèvement d'échantillons adapté par l'usage dans ces dispositifs de mesure
EP0057267A1 (fr) * 1981-02-04 1982-08-11 Westfalia Separator AG Appareil pour mesurer les quantités de lait tirées d'une vache au cours de la traite

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919975A (en) * 1974-08-05 1975-11-18 Lloyd P Duncan Milker unit
DE2810376B2 (de) * 1978-03-10 1980-04-03 D E C Gmbh, 4660 Gelsenkirchen-Buer MilchmengenmeBgerät
US4295490A (en) * 1978-05-16 1981-10-20 Boudreau Archie E Milking apparatus
US4306590A (en) * 1978-05-16 1981-12-22 Boudreau Archie E Milking apparatus discharge valve
US4190021A (en) * 1978-05-22 1980-02-26 Reisgies Rolf W Automatic stimulation apparatus for milking machines
CA1138805A (fr) * 1978-07-05 1983-01-04 Paul Slater Detecteur d'ecoulement de liquides
SE440999C (sv) * 1981-04-01 1992-06-01 Tetra Pak Ab Ventilaggregat innefattande ett av flexibelt material tillverkat munstycke
AU7621981A (en) * 1981-10-09 1983-04-14 Turn-Styles Ltd. Milk flow sensing and control
GB2112530B (en) * 1981-12-04 1986-09-17 Nat Res Dev Determining the level of contaminants in a hydraulic system
US4516530A (en) * 1983-10-14 1985-05-14 Germania Dairy Automation, Inc. Milk sweep method and apparatus for automated milking systems
LU85707A1 (de) * 1984-12-21 1985-07-24 Hydrolux Sarl Zweiwege-stromregelventil
SU1720599A1 (ru) * 1988-05-05 1992-03-23 Латвийская сельскохозяйственная академия Стенд дл настройки и испытаний поплавкового счетчика молока доильной установки
US5195456A (en) * 1989-02-27 1993-03-23 C. Vander Lely N.V. Milking apparatus
EP0471076B1 (fr) * 1990-01-19 1993-08-11 Latviiskaya Selskokhozyaistvennaya Akademia Dispositif de determination du rendement d'une installation de traite
US5813432A (en) * 1993-11-05 1998-09-29 Emco Wheaton Fleet Fueling Corp. Automatic shut-off valve arrangement
SE514927C2 (sv) * 1999-09-15 2001-05-21 Delaval Holding Ab Metod och anordning för rengöring av en mjölkningsanläggning
US7882801B2 (en) * 2003-08-29 2011-02-08 David Eric Akerman Milk sampling and testing
ATE521228T1 (de) * 2004-01-08 2011-09-15 Delaval Holding Ab Melkverfahren und melkvorrichung
DE202005017065U1 (de) * 2005-10-28 2006-03-02 Lincoln Gmbh & Co. Kg Kolbenanordnung, insbesondere für Zumessventile
SE529701C2 (sv) * 2006-01-31 2007-10-30 Delaval Holding Ab Mjölkningssystem och metod för vakuumreglering
SE0700274L (sv) * 2007-02-05 2008-08-06 Delaval Holding Ab Automatic monitoring of milking plant valve means
NL2000483C2 (nl) * 2007-02-09 2008-08-12 Hanskamp Agrotech V O F Melkinrichting voor het melken van melkdieren.
US20120097107A1 (en) * 2010-02-22 2012-04-26 Gea Farm Technologies, Inc. Dairy animal milking preparation system and methods
US8752504B2 (en) * 2011-05-25 2014-06-17 Technologies Holdings Corp. Milking system shut-off and sensors
DE102013114595B4 (de) * 2013-12-20 2026-01-15 Gea Farm Technologies Gmbh Sicherheitsventil
EP3139733B1 (fr) * 2014-05-09 2019-01-30 DeLaval Holding AB Système de nettoyage pour un système de traite de lait automatique
NL2012793B1 (nl) * 2014-05-09 2016-02-24 Lely Patent Nv Melksysteem.
CN109640637A (zh) * 2016-09-05 2019-04-16 利拉伐控股有限公司 用于挤奶机的测试装置和测试方法
NL2017924B1 (nl) 2016-12-05 2018-06-18 N V Nederlandsche Apparatenfabriek Nedap Melkmeter
US10636596B2 (en) * 2017-03-09 2020-04-28 Thomas R. Duksa Flow sensor module and controller
WO2019090044A1 (fr) * 2017-11-03 2019-05-09 Gea Farm Technologies, Inc. Collecteur de fluide de trempage de trayons automatisé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023449A1 (fr) * 1979-07-18 1981-02-04 Centre National Du Machinisme Agricole, Du Genie Rural, Des Eaux Et Des Forets (Cemagref) Compteur de liquide, notamment compteur à lait, muni d'un dispositif de prélèvement d'échantillons
EP0052396A2 (fr) * 1980-11-14 1982-05-26 Kummer Electronics B.V. Dispositif de mesure du poids d'une quantité de lait donnée par une vache et dispositif pour l'enlèvement d'échantillons adapté par l'usage dans ces dispositifs de mesure
EP0057267A1 (fr) * 1981-02-04 1982-08-11 Westfalia Separator AG Appareil pour mesurer les quantités de lait tirées d'une vache au cours de la traite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3794940A1 (fr) * 2019-09-20 2021-03-24 Nedap N.V. Compteur à lait
NL2023871B1 (nl) * 2019-09-20 2021-05-25 Nedap Nv Melkmeter
DE102023124006A1 (de) * 2023-09-06 2025-03-06 Lactocorder Ag Portionierungsvorrichtung zur Erzeugung von Flüssigkeitsportionen mit vorgegebener Menge und Flüssigkeitsmengenmesssystem mit einer solchen Portionierungsvorrichtung
NL2036467B1 (en) 2023-12-08 2025-06-19 Nedap Nv A method and apparatus using an animal milking measurement unit for independently analyzing a milk flow

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US20190234785A1 (en) 2019-08-01
NL2020053B1 (nl) 2019-06-19
US11350604B2 (en) 2022-06-07
EP3494777B1 (fr) 2021-08-18

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